Originally Posted by Jeff@TotalPerformanceEng

Normally, My vote would go to wiseco also. Its been our piston of choice in every motor we build for 3 years now. But lately their ordering/shipping has gone to ****. As of Friday, we have had to switch over 4 of our "Current" builds to diamonds, because they cant seem to get off their azz and deliver pistons. Were talking about a 4.155, 4.070, 3.905, and a 4.005 shelf piston.

2 weeks ago, we were told they would be ready in 10 days. Then on friday, we were told not until the middle of july. So we were force to switch to Diamonds at the last minute. Diamond can get them to us in 5 days.

Sometimes you need to factor in every part of the build process into your vote. In this case, it pisses me off cause their screw ups are hurting MY shops flow of business.

Originally Posted by briannutter

To be honest with you, there are major differences between all of the manufacturers. Cranks, rods, pistons, heads, etc. So many things that a average guy doesn't have the tools to measure or ways to test. I see racers on forums all the time defending manufacturers simply because they chose that manufacturers' parts for their own engine. Maybe a given manufacturer DID have the best piece at that time, but we as manufacturers are constantly battling to have the next best piece.

As people in the manufacturing industry, we're friendly with each other and we often hang out at shows and races etc. There are a few *********, but that's pretty rare because we all like cars. Here's the thing about pistons in particular, I'll quote my friend Tom Jung from Arias: "they're round and they go in the hole". To a certain extent that's true, but there are so many little things to making parts "right" and it's a constant battle to maintain the good things and improve on others. The question is whether you as a racer demand "the best" for your engine or can be happy with a part that simply fit your expectations. That's not always a bad thing if you're on a budget.

Those of us on the inside of the manufacturing industry see each others parts all the time. We KNOW who has the best part for a given market and it's not always us. We know which issues a given manufacturer has and whether they're making progress (or even care to). There's also a big difference in the AVERAGE quality of a piece company churns out versus what they CAN do for certain high end markets. I personally pride our company that even our "cost competitive" parts are made to a high grade even if they're a "low feature" piece. I hope that makes sense.

There are roughly 13 manufacturers of aftermarket pistons in the U.S. and most of us have been in business for a long time. To be in business for that long, a company carves out a niche and may have parts that excel in certain markets and fail in others. I should state that there are some manufacturers that kick *** in some markets, but couldn't make a LS part worth a damn. That's cause the owners simply "like" working with certain markets and choose be the best at what they know. When not in a public forum, I often give props to other manufacturers if they have a good piece for a given market, but I'll also protect my customers from manufacturers that don't if it means an engine might fail to perform or last.

Originally Posted by Texas_WS6

Wow, whats wrong with Ross pistons? They any good?

Originally Posted by Texas_WS6

So I should not worry about mine? When they cam in we set them up next to other leading brands, WOW what a difference there was! But to be fair they are custom cut for extream boost with L92 heads, and the others were off shelf pistons not set up to the requirements we asked for, they were for other peoples set ups. Not really an apples to apples comparison. I am not trying to set anyone up either, I have just noticed or have not met anyone else running Ross in the LS engines and was starting to get conserned that I might have made a bad choice.